425422111 has 2 divisors, whose sum is σ = 425422112. Its totient is φ = 425422110.

The previous prime is 425422097. The next prime is 425422121. The reversal of 425422111 is 111224524.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 425422111 - 2¹¹ = 425420063 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (425422121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 212711055 + 212711056.

It is an arithmetic number, because the mean of its divisors is an integer number (212711056).

Almost surely, 2^425422111 is an apocalyptic number.

425422111 is a deficient number, since it is larger than the sum of its proper divisors (1).

425422111 is an equidigital number, since it uses as much as digits as its factorization.

425422111 is an evil number, because the sum of its binary digits is even.

The product of its digits is 640, while the sum is 22.

The square root of 425422111 is about 20625.7632828460. The cubic root of 425422111 is about 752.0961279097.

Adding to 425422111 its reverse (111224524), we get a palindrome (536646635).

The spelling of 425422111 in words is "four hundred twenty-five million, four hundred twenty-two thousand, one hundred eleven".